(19)

(11)

EP 0 491 890 A1

(12)

(43) Date of publication: 01.07.1992 Bulletin 1992/27 (21) Application number: 91911535.0 (22) Date of filing: 07.05.1991

(51) International Patent Classification (IPC):  A61B 10/ 00( . ) A61B 17/ 28( . ) A61B 18/ 14( . ) A61B 17/ 00( . ) A61B 19/ 00( . ) A61B 10/ 06( . ) A61B 17/ 32( . ) A61B 10/ 02( . ) A61B 17/ 30( . ) (86) International application number: PCT/US1991/003138 (87) International publication number: WO 1991/016856 (14.11.1991 Gazette 1991/26)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 10.05.1990 US 19900521766 (71) Applicant: BOSTON SCIENTIFIC CORPORATION Watertown, MA 02172-2407 (US)	(72) Inventors: BALES, Thomas, O., Jr. Coral Gables, FL 33146 (US) SLATER, Charles, R. Ft. Lauderdale, FL 33312 (US) SMITH, Kevin, W. Miami, FL 33156 (US) (74) Representative: Austin, Hedley William, et al  Urquhart-Dykes & Lord Alexandra House 1 Alexandra Road Swansea West Glamorgan SA1 5ED Swansea West Glamorgan SA1 5ED (GB)